“Old vines”—a common description on some wine labels—is an ambiguous term, sometimes applied to vines no more than 10 years old. However, there is an old vine that is certified by Guinness World Records. In which of the following countries can the oldest living grapevine be found?

B.

The wine region of Maribor, Slovenia, is home to the world’s oldest living grapevine. The vine was certified by Guinness World Records in 2004 and is the native red variety žametovka. At over 400 years old, the vine currently produces less than a gallon of wine per year. This small yield of wine is put into tiny bottles and given each year to presidents and other important world figures.